Spoofing attack in Microsoft Visual Studio Live Share

1) Spoofing attack

EUVDB-ID: #VU23472

Risk: Medium

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1486

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in Visual Studio Live Share extension. A remote attacker who host a Live Share session can trick a victim to connect to the session, cause a connected guest's computer to open a browser and navigate to a URL without consent from the guest.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Visual Studio: 16.0.0 16.0.28729.10 - 16.4.0 16.4.29519.181

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1486

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.